1990—2020年宁夏地表水体变化时空分布特征

doi:10.14088/j.cnki.issn0439-8114.2026.02.011

摘要/Abstract

摘要： 为了解宁夏地表水资源的空间分布特征,并为区域内水资源的合理利用提供参考,以Joint Research Centre（JRC）全球地表水数据集为基础,采用统计分析、Mann-Kendall法、小波分析等方法,研究了1990—2019年宁夏地表水的变化特征、突变特征及振荡周期,并分析了1990—2020年水体空间密度演化特征。结果表明,1990—2019年宁夏地表水体面积增加了141.28 km²,增幅为188.3%,水体数量增加了1 861个,增幅为42.0%;1990—1999年水体总面积和数量呈减少趋势,2006年后水体面积显著增加,2016年后水体数量显著增加,2014年水体数量发生增长突变;水体总面积和总数量主要存在22年的第一振荡主周期以及30年的第二振荡主周期;从水体空间密度来看,宁夏水体增长最快的区域为黄河沿线,密度增加范围最大的区域为银北平原灌区,中部和南部水体密度在空间范围上有所扩大。

关键词: 地表水, 空间密度, 时空演化, 变化周期, 突变检验, 宁夏回族自治区

Abstract: In order to understand the spatial distribution characteristics of surface water resources in Ningxia and provide reference for the rational utilization of water resources in the region, based on the Joint Research Centre ( JRC ) global surface water data set, statistical analysis, Mann-Kendall method, wavelet analysis and other methods were used to study the variation characteristics, mutation characteristics and oscillation period of surface water in Ningxia from 1990 to 2019, and the spatial evolution characteristics of water density in the region from 1990 to 2020 were also analyzed. The results showed that the surface water area in Ningxia increased by 141.28 km² from 1990 to 2019, with an increase of 188.3%, and the number of water bodies increased by 1 861, with an increase of 42.0%. The total area and number of water bodies showed a decreasing trend from 1990 to 1999, the area of water bodies increased significantly after 2006, the number of water bodies increased significantly after 2016, and the number of water bodies increased abruptly in 2014. The total area and total number of water bodies mainly had the first oscillation main period of 22 years and the second oscillation main period of 30 years. From the perspective of spatial density of water bodies, the fastest growing area of water bodies in Ningxia was along the Yellow River, the largest area of density increase was the Yinbei Plain Irrigation District, and the density of water bodies in the central and southern regions had expanded in space.

Key words: surface water, spatial density, temporal-spatial evolution, variation period, mutation test, Ningxia Hui Autonomous Region

中图分类号:

P333

张怡娴. 1990—2020年宁夏地表水体变化时空分布特征[J]. 湖北农业科学, 2026, 65(2): 70-80.

ZHANG Yi-xian. Spatial and temporal distribution characteristics of surface water body variation in Ningxia from 1990 to 2020[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(2): 70-80.

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